Improvement in sash-pulleys



ANTOINE LE PAGE.

Improvement in Sash Pulleys.

No. 121,178. PatentedNbv.2l,l87I.

PATENT OFFICE.

ANTOINE LE PAGE, OF WOODHAVEN, NEW YORK.

' IMPROVEMENT IN SASH-PULLEVS.

Specification forming part of Letters Patent No. 121,178, dated November2l, 1871.

To all whom it may concern:

Be it known that I, ANTOINE LE PAGE, of Woodhaven, in the county of Queens and State of New York, have invented an Improvement in Sash-Pulleys, of which the following is a specification:

The object of this invention is to afford greater facility for securing sash-pulleys in place. To this end it consists in the combination of spurs on one end of the pulley-case or shell with a button having obliquely 0r spirally-threaded lugs and pivoted near the other end of the case or shell, said button being so formed that when turned to one position it will pass freely with the pulley-case or shell into the mortise provided for it in the window-casing, and that it may, after the insertion of the case or shell and pulley into the mortise, be turned to such a position that its spirally-threaded lugs indent themselves into the sides of the mortise and thereby secure the shell or casing in place.

In the accompanying drawing, Figure .1 is a side view of a sash-pulley made according to my invention. Fig, 2 is a back view of the same, and Fig. 3 is a transverse section thereof taken at the dotted line as m in Fig. 1.

Similarletters of reference indicate corresponding parts in all the figures.

The pulley-case or shell is made in a well-known manner of three pieces, A A and B; the latter, which constitutes the face-plate, having formed on its back side lugs a a, that are secured by rivets b b with the side pieces A A, which contain the bearings of the pulley 0. On the lower ends of the side pieces A A spurs c c are formed, and their parts are extended at d, in Fig. 1, to meet the face-plate B and form a frame for the reception and support of the button D. The button D has on its outer end a journal, j, which fits in a bearing in the face-plate and is notched at the end like a screw-head. At its inner end there is formed a concave or female center, into which a teat or male center, formed on the parts (1 of the side pieces, projects and forms the bearing. Near its inner end there are formed, on opposite sides, two spiral lugs or portions of screw-threads, e e, which, being only on two sides, give to the button what may, for convenience, be termed a length and width. When turned so that the width coincides in position with the width of the face-plate B, as shown in dotted outline in Fig. 2, it does not project beyond the side pieces when turned crosswise; as shown in bold outline in Fig. 2 it does so project.

To apply the sash-pulley thus constructed to a window-casing the button is first brought with its width parallel with the width of the pulleycase. The lower end of the pulley-case is then inserted into the mortise and forced down thereinto, so as to drive the spurs into the bottom thereof. The upper part is then pushed in and button turned by means of a screw-driver, and its lugs or screw-threads thereby indented into the wood and made to draw the case into the mortise, and the whole is firmly secured. To remove the sash-pulley the button is turned to bring its width parallel with that of the pulley-case; the upper end is then pulled out and drawn upward to withdraw the spurs from the bottom of the mortise, and it is then free.

A pulley can be secured in place in this manner much more easily and quickly than by the ordinary way with two screws, and is equally secure.

T'Vhat I claim as my invention, and desire to secure by Letters Patent, is

The combination, with the pulley-case, of the spurs c c and oblique or spiral-threaded button D, substantially as and for the purpose herein described.

ANTOINE LE PAGE. Witnesses:

FRED HAYNES,

R. E. RABEAU. (24) 

